Just rotate this unbelievably simple world-clock and it shifts time zones!

This Lexus Design Award winning clock goes to show that sometimes the solution to a problem can be just oh-so-simple. Ditching the idea that you need to have multiple clocks to tell the time in different time zones, Masafumi Ishikawa’s World Clock is just ridiculously simple. The clock comes with a dodecagonal (12-sided) form, and just an hour hand. Each face of the dodecagon has the name of a famous city, corresponding to a time zone, on it. Just face the city’s name up and the hour hand tells you what time it is there (you’d probably have to use your common sense to tell if it’s am or pm). The only catch is that the World Clock doesn’t work with daylight-saving time, given that not all countries follow the practice of turning their clocks back and forth.

As the hour hand rotates on an axis, the world clock’s form was designed to be rotated and placed on a surface. Change what face it rests on, and the hour hand points somewhere else. Ishikawa uses this rather simple fact to turn a regular clock into a world clock! Give it a try, you can turn your table clocks into world clocks too!